Inking mechanism for printing-presses.



S. G. GOSS.

INKING MECHANISM FORPRINTING PRBSSES.

APPLICATION FILED MAY 20, 1909.

Patented Apr. 5,1910.

3 SHEETS-SHEET 1.

s. G. eoss.

INKING MECHANISM FOR PRINTINGIBESSES.

APPLICATION FILED MAY 20, 1909. 954,088. Patented Apr. 5, 1910.

3 SHEETS-SHEET 2.

HIKING mncmmsn r03 PRINTING PBESSES.

' APPLICATION FILED HAY 20, 1909. I Q 954,088. Patented Apr. 5, 1910.

3 SHEETS-SHEET 3.

m N K T77 w W. W. fl

UNITED STATES PATENT OFFICE.

SAMUEL-G. GOES, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE PANY, OF CHICAGO,ILLINOIS. A CORPORATION OF ILLINOIS.

specificationof Letters Patent.

INKING MECHANISM FOR PRINTING-PRESSES.

Patented Apr. 5, 1910..

Application filed May 20, 1909. Serial No. 497,288.

To all whom 'it may concern: I

Be it known that I, SAMUEL G. Gross, a citizen of the United States,residing at Chicago, in the county of (look and State of Illinois, haveinvented certain new and useful Improvements in Inking Mechanism forPrinting-Presses, of which the following is aspecification, referencebeing had to the accompanying drawings.

My invention relates to improvements in inking mechanism forv printingpresses, and

its objectis to provide a new and improved means for kee lug-cool thecomposition rollers of such in ing mechanism so as to revent'their npiryand consequent short 1i e.

As is well-known, the inking rollers of printing mechanisms whichoperate upon the ink drum and printing platesare covered with what isknown as composition and are arranged so as to rotate on the ink drumand at the same time are given a vibratory mot-ion longitudinally of thedrum. This causes friction between the parts, causing both the inkingdrum and .the composition of the rollers. to become heated in operation.This heating, as is well-known, injuriously affects the composition onthe rollers and softens it, which very seriously shortens the life of"the rollers. So susceptible is this composition to heat thatin hotweather or in hot press rooms the rollers wear out much more rapidlythrough the heating than in a colder atmosphere.

My-inventlon therefore relates to 1nechanism which will keep the rollerscool during their operation by discharging upon the rollers, eitherconstantly or at suitable intervals, a blast. orblasts of cold air, andalso of the impression cylinders of' the press. I Fig. 2 is an elevationof'the inking mechan ism seen from one end of the press. Fig. 3' is anenlarged detail, being a longitudinal section through the controllingvalve. Flg.

4 is a section on line 44; of Fig. 3. Fig. 5 is a detail, being a crosssection through the ink drum, showing the coring out of the same toprovide passages for the cold air. Fig. 6 is across section of one ofthe dis- GOSS PRINTING PRESS COM- charge pipes, showing the orificesthrough which the air is discharged upon the composition rollers.

7 indicates the framework, and 8 and 9 respectively a plate cylinder andan impression cylinder.

10 indicates the'ink drum, which, as is best shown in Fig. 5, is coredout so as to have hollow spaces 1l within its periphery whichare closedat each end by the usual heads of the cylinder and adapted to receive asupply of cold air from the pipes hereinafter described.

"12 indicates the usual inking fountain which is carried upon the frame7.

13 indicates a feed inking roller, which,- vbeing'swung back and forthbetween the fountain and the ink drum operates to convey ink'from thefountain tothe drum.

As the fountain and the feed inkingroller' form no part of my presentinventi'onand may be operated in any well-known man ner, itis enough tosay that they may be operated in any well-known manner, as by cams 14 onthe drivin shafts 15, operating upon'one arm of the evers 16, and byeccentric-rods 17 on the shafts 15 and ratchetwheels and pawls1819. Theshafts 15 are driven by worms 20 which are driven by worm-gears 21 uponthe shaft 22, which, by means of a gear 23 is driven byJthe gear-2 1 onthe shaft 25 of, the ink drum 10. The

ink drum in its turn is driven by the usual the shaftofthe impressioncylinder-8', and intermediate and 26.

28 indicates the vibrating inking rollers which are mounted in sockets29 and are vi brated in the usual manner, as by rockgearing from thepress, as by the gearflfi on I gear 27 meshing with gears 2 L shafts 30actuated by the eccentric-rods 31 and eccentrics 32 on the shafts 15;These vibrating r0llers'28 are ofcourse covered with the usualcomposition and operate in the 5 wellknown manner upon the ink drum 10.r I

3334 indicate form rollers which serve to convey the ink from the inkdrum 10 to the plate cylinder 8 and are mounted and operate in the"usual manner.

indicates a pipe which leads from any suitable source of cold air supply(not shown).

36 indicates an upright pipe which leads from the end of the supply pipe35 to the devices hereinafter described.

37 indicates a valve which is interposed gear 42 by the rotation ofwhich by the mechanism hereinafter described the valve is opened orclosed.

43 indicates a rock-shaft which is journaled in the framework, and isprovided with arms 44 and 45.

46 indicates a segment which is fixed upon the rock-shaft 43 and isadapted to mesh with the gear 42 on the stem of the valve 40 wherebywhen said rock-shaft is rocked in.

the manner hereinafter described the valve 40 will be opened or closed.

47 indicates a gear which is loose on the shaft 15 and has upon its facea cam 48 which may be either secured thereto or formed integraltherewith and which bears upon a roller 49 of the arm 45 oftherockshaft43. A s ring 50 on the rock-shaft 43 operates to ho d theroller 49 in constant engagement with the cam'48.

51 indicates a gear fast on the shaft 15 which meshes with gear 52 faston a countershaft 53 whichis journaled in suitable bearings 54 on theframe;

55 indicates a gear fast on the shaft 53 which meshes with gear 47.\Vhen the shaft 15 is driven as above described, the countershaft 53will be driven by gears 51 and 52,

and, through the gear 55, which meshes with the gear 47, the gear 47will be' rotated, ro-

tating the cam 48 which operates to rock the rock-shaft 43. These gearsare so proportioned to the speed of the shaft 15 and to the speed of theink drum 10 that the gear 47 and its cam 48 will rotate once for everyfour revolutions of the drum 10, thereby giving to the rock-shaft 43 oneforward and backward action for each four revolutions of the ink drumand therefore opening and closing the valve once for each fourrevolutions of the ink drum. While I find this speed preferable inpractice, it may of course be varied according to circumstances.

5657 indicate valves in the pipe 36 which are operated by hand-levers5859, respectively.

60 indicates pipes which are connected by the usual couplings 61 withthe upright pipe 36 and with another upright pipe 62 upon the other sideof the machlne corresponding to the upright pipe 36. These pipes 60 arealso supported by means of rods 63 in brackets 64 supported upon theupper ends of the pipes 36 and 62. The pipes 60 are perforated above themiddle distributing rollers 28 by suitable openings, as 65 (see Fig. 6),through which cold air forced through the pipes from the supply pipe 35may be discharged upon the middle distributing rollers 28.

66 indicates pipes having perforations similar to those described inpipes 60, and which, by means of connecting pipes 67, are swung upon thepipes 60 so that they may be brought closer to or farther from theexterior inking rollers 28, as indicated by solid and dotted lines inFig. 1. The pipes 67 connect the pipes 66 with the pipes 60, so

that the air forced into the pipes 60 will also pass into the pipes 66to be discharged therefrom upon the exterior distributing rollers 28 andupon the inking roller 33. The lower end of the pipe 62 is connectedwith another discharge pipe 68 which leads across the machine to oneside of the roller 34 and is perforated so as to permit thedischarge ofthe air upon the inking roller 34. By means of a pipe 69, the pipe 68isconnected with the valve 56in the upright pipe 36.

70 indicates a hand-operated valve near the bottom of the pipe 62 bymeans of which the connection between the pipe 62 and pipe 68 may beshut off. The valve 56 opening into PIPE/68 operates to shut off theconnection with the pipe 68 at the other end, when desired.

The shaft 25 of the ink drum 10 is provided at each end with an axialboring 71, which borings 71, by means of valved couplings 72, areconnected with the pipe 36 at one end and the pipe 62 at the other endof the shaft. These connections may be made in any well-known way, forinstance by the mechanism shown in section upon the lefthand side ofFig. 2, in which 73 indicates a collar which is revolubly mounted uponthe shaft 25 air-tight therewith.

74 indicates a cap which is screw-threaded upon the collar 73 andconnected with a coupling-joint 72 and is provided with an opening 75registering with the openings 71 in the shaft 25.

76 indicates a circular plate secured upon the end of the shaft 25 andfitting air-tight into the interior of the cap 74'and provided with theusual packing 77 between it and the collar 73. By means of thismechanism, the air will ass into the openings 71 in the shaft 25 whileit is rotating.

As is best shown in Fig. l, the valved couplings 72/.rare provided withvalves 72 'which are screwed into the shaft 25 and valve 56 when it isopen back into circulawhich are adapted to be turned, aswill be readilyunderstood Without detailed description, so as to open the passage fromthe pipe 36 directly into the drum 10, closing the pipe 36 above thedrum, or so that the air-may passthrough the pipe 36 closing the passageinto the drum, or so that the air may pass both ways. In additionto-this, coupling 72 upon the right hand side of the machine in Fig. lis provided with a tube 81 having a discharge valve 82 which may beeither closed so as to prevent the escape'ot' the air directly fromthecored-out drufn into the atmosphere and to cause it to flow aroundthrough the other pipes the valves being suitably arranged. or topermitits escape directly into the atn'iosphere without passing throughthe other piping, the other valves being closed, so that the air maypass only through the ink drum 10, if desired.

78 indicates, diametrically-disposed pipes open at their inner ends intothe openings 71. The outer vends of the pipes 78, by screw-couplings 79, are connected with the the valved l cored-out spaces 11 in thecylinder 10. v

indicatesa valve in the pipe 62 corresponding with the valve 57 in thepipe 36 and operated by hand in the same manner and serving to shut-oilthe upper part. of the pipe 62 and therefore the-pipe 60 and the pipe 66from the return pipe 68.

Whenever the valve 37 is opened by the 35 will flow into the pipe 36,thence into the shaft borings 71 at the left-hand end in Fig. 2, throughtheleft-hand coupling 72, valve 7E2 being suitably turned, .thence tothe cored-out spacesll in the ink drum 10, out through the pipe 78 atthe other end and into the lower portion of the'pipe 62 through; thecoupling 72; at the right-hand end in Fig. :2, and through the pipe 68,discharging upon the form inking roller 34. Such portion of the .air asis not discharged passes on into the pipe 69, and then through the tionagain. If the valve 56 is closed, the air will be simply dischargedthrough the, perforations in the pipe 68 upon the roller 34. If thevalve 59 is open the air will also pass up through the pipe 36 and bepartially discharged through the perforations in the pipes 60 and 66upon the inkingrollers 28 and form roller 33, such portions as are notdischarged passing on to be discharged in the upright pipe 62 and thenceinto the pipe 68. The connections, as above described,- atford acirculation of air through the parts, as will be readily seen, wheneverthe valve 37 is opened to supply cold air. and the cold air dischargedthrough the pipes operates to cool the composition rollers and also theink drum which would otherwise. tend tobel ,eoineneated with thefriction of the comthe piping for discharging [upon either or all of theinking rollers, or may be excluded from the ink drum entirely anddirected onlythrough the piping to discharge upon all the inking rollersor different rollers individually. For instance, the other valvesleading to the piping which discharges air upon the inking rollei'sbeing closed, the valves 7 a may be opened and the discharge valve 82opened. In this case, the cold air will flow directly through the inkdrum and not be discharged upon the inking rollers.- Ur the;val\-'e 72maybe closed and the other valves in the piping be suitably opened sothat the cold air will'bc shutofi' from the ink drum and be caused to bedischarged upon the inking rollers. \Vithout going into further details,it will be readily understood that these valves may be variouslyoperated to cause the air. to pass through the piping in a number ofditferent ways so as to discharge as above suggested only through theink drum, or only upon the ink.- ing rollers, or through the ink drunrand through the piping upon the inking rollers, or upon all or selectedportions of them.

The cam 48 is so constructed that when the roller 49 rides up theinclined surface of the cam and rocks the arm 45 to the right in Fig. 1,th valve 37 is closed, and opened when the roller 49 on the arm 45descends to the lower portion of the cam, and the 7 higher and lowerportions of the cam are so proportioned as to give the desired pe riodsof opening and losing said valve. .1

prefer to so construct the cam that the valve will be 0 en during aboutone-half of the period 0 rotation and closed during the other half.

81, indicates a. .lever which is journaled upon .any suitable portion ofthe framework and adapted to be swungby hand; One 'end of. the lever 81projects over the upper end of'the arm 44 of the rock-shaft 43 and isadapted, when the arm 44 is swung to the left in Fig. 1 of the drawingsby the riding of the roller 49 up the inclined surface of the cam, to beswung behind the arm 4% and operate as a stop to prevent the return ofthe rock-shaft by the action of the spring 50, thus holding the valveclosed. This is used in case of any stoppage of the machine, either frombreakdown-or other cause which might occur at the. time when the valve.was open, causing a waste of air, the valve being thus-held shut aslougas may be desired.

l/Vhen it is'desired to put the valve into 0perative position again, thelever 81 is swung back into the position shown in Fig. 1.

lVhat I claim as my invention and desire to secure by Letters Patent is,

1. The combination with an inking mechanism having an ink drum andinking rollers, of pipes in operative relation with said inking rollersand adapted to discharge cold air upon said inking rollers, pi-pesadapted to supply cold air to said ink drum, valve mechanism connectingsaid pipes, and automatiCally-operated mechanism adapted to open andclose said valves at suitable intervals.

2. In an inking mechanism, the combination with an ink drum having anair chamber within and adjacent to its peripheral surface. of pipesadapted to supply cold air to said air chamber, valve mechanism in saidpipes, and mechanism adapted to automatically open and close said valvemechanism.

3. In an inking mechanism, the combination with an ink drum having anair chamber within and adjacent to its peripheral surface, of pipesadapted to supply cold air to said air chamber, valve mechanism in saidpipes, inking rollers, pipes placed in operative relation to said inkingrollers and having discharge perforations therein, pipe connectionsadapted to supply cold air to the pipe connections with said drum andwith said discharging pipes for said inking rollers, valve mechanism insaid supply pipes, and mechanismadapted to automatically open and closesaid valves at suitable intervals.

t. In an inking mechanism, the combination with an ink drum cored, outto provide an air space or spaces within and close to its periphery,pipes adapted to conduct a supply of cold air into and through said airspaces, inking rollers, perforated pipes in operative relation with saidinking rollers and adapted to discharge cold air thereon, a supply pipeconnected with said pipes leading'to said air spaces and to saidperforated pipes and adapted to be connected with a source of cold airsupply, a rotary valve in said supply pipe having a gear upon its valvestem, a rock-shaft, a segmental gear on said rock-shaft meshing with thegear on said valve-stem, an arm on said rock-shaft, a shaft, means fordriving said shaft, and a cam operatively connected with said last-namedshaft and adapted to bear upon said arm on said rock-shaft toautomatically open and close said valves at suitable intervals.

5. In an inking mechanism, the combina tion with an ink drum cored outto provide an air space or spaces within and close to its periphery,pipes adapted to conduct a supply of cold air into and through said airspace, inking rollers, perforated pipes in operative relation with saidinking rollers and adapted to discharge cold air thereon, a supply pipeconnected with said pipes leading to said air space and to saidperforated pipes and adapted to be connected with a source of cold airsupply, a rotary valve in said supply pipe having a gear upon its valvestem, a rock-shaft, a segmental gear on said rock-shaft meshing with thegear on said valve-stem, an armon said rock-shaft, a shaft, means fordriving said shaft, a gear loosely mounted on said shaft and having acam secured thereon adapted to bear on said arm to operate saidrock-shaft to open and close said valve at suitable intervals, andgearing between said shaft and the gear loosely mounted thereon.

6. The combination with inking mechanism having a chambered ink-drum andinking rollers, of means for discharging cold air through said drum, andmeans for dis charging the cold air after ithas passed through saiddrumupon said inking rollers.

7 The combination with inking mechanism having an ink drum with an airchamber or chambers and having inkin rollers, of means for dischar ingcold air into and through said ink rum and mechanism adapted to thencedischarge the cold air upon said inking rollers or to discharge itdgectly from said drum into the atmosere.

p 8. The combination with inking mechanism having a cored-out ink drumand inking rollers, of means for discharging cold air either throughsaid drum or upon said inking rollers.

9. In an inking mechanism for printing presses, in combination, an inkdrum rovided with an air chamber or chambers, inking rollers, and meansadapted to discharge cold air into said drum and thence after passingthrough said drum either into the atmosphere or upon said inkingrollers.

SAMUEL G. GOSS.

Witnesses:

C. E. PIoKARn, W. H. DE BUsK.

